My Mac is a couple years old, and I'd like to prolong its life a little instead of buying a new one. That said, everyone always says you can't upgrade Macs. Is that true? What can I upgrade?

Sincerely,
Zoo Lion

Dear ZL,
Macs are notoriously hard to upgrade, but it's possible to eke out a performance boost pretty easily with a few simple upgrades you can do yourself. While you can't go tossing a high end graphics card into your iMac, you can do a few other things to speed up a MacBook or iMac. Here's what we suggest.

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That said, iMacs are a little different. It's entirely possible to install an SSD in older iMacs, but it's a little unnerving since you have to pop the glass off your display off with special tools. That said, every model is a little different, so it's worth looking at iFixIt's iMac page for a breakdown of whether you can upgrade to a SSD or not (and how much of a pain it'll be to do it yourself). If you do deside to upgrade to a SSD, our guide to picking the best one is a good place to start your shopping.

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Boost Your Mac's Capabilities Elsewhere

Traditional upgrades aren't always possible on Macs because Apple usually sacrifices upgradeability for form. However, you can still do a few things to improve your overall enjoyment of your computer. Here are a few suggestions:

Clean it up: Laptops get incredibly dirty over time, and while you probably won't see a huge increase in the performance, a cleaning your MacBook from the inside out can make it run a little smoother (and perhaps even better).

Install another operating system: If OS X isn't doing it for you, a simple way to take control of your Mac's power is to install Linux or Windows (or both). It might not seem like much, but the more Apple hamstrings you with their OS, the more likely it is you'll get to juice up your old Mac with another operating system. If you do like OS X, backing up to an older operating system (like downgrading to Snow Leopard) might also provide a performance boost.

Buy better software: One of the biggest problems with Macs is that Apple seems to give up on supporting them after four or five years. This means the current operating system might not work, and Apple's software support will slow to halt. That's actually not a bad thing. Older software is typically cheaper (say, buying a copy of Photoshop CS 4 instead CS 6), and a surprising amount of the apps we talk about support older operating systems. Replacing some of the boring default Mac software is a great place to start.

In the end, a Mac will never be as upgradeable as a Windows PC (unless you build your own Hackintosh), but that doesn't mean you don't have options. Sure, you can't get that super fast new graphics card (it's possible on an iMac but incredibly difficult) in there to play all the (somewhat) modern games on your Mac, but you can at least keep it useable for a lot longer than Apple probably wants you to.